





import os
import tos

import pdb



# 从环境变量获取 AKSK 信息
ak = os.getenv('TOS_ACCESS_KEY')
sk = os.getenv('TOS_SECRET_KEY')




# your endpoint 和 your region 填写Bucket 所在区域对应的Endpoint。# 以华北2(北京)为例，your endpoint 填写 tos-cn-beijing.volces.com，your region 填写 cn-beijing。
endpoint = "tos-cn-beijing.ivolces.com"
region = "cn-beijing"

bucket_name = "baai-cwm-bucket-01"
# baai-cwm-tos1//
object_key = "public/nuscenes-lidarseg-v1.0/nuScenes-lidarseg-all-v1.0.tar.bz2"

file_name='./nuScenes-lidarseg-all-v1.0.tar.bz2'

try:
    # 创建 TosClientV2 对象，对桶和对象的操作都通过 TosClientV2 实现
    client = tos.TosClientV2(ak, sk, endpoint, region)
    # 下载对象到内存中
    object_stream = client.get_object(bucket_name, object_key)

    # print(object_stream.read())

    client.get_object_to_file(bucket_name, object_key, file_name)

except tos.exceptions.TosClientError as e:
    # 操作失败，捕获客户端异常，一般情况为非法请求参数或网络异常
    print('fail with client error, message:{}, cause: {}'.format(e.message, e.cause))
except tos.exceptions.TosServerError as e:
    # 操作失败，捕获服务端异常，可从返回信息中获取详细错误信息
    print('fail with server error, code: {}'.format(e.code))
    # request id 可定位具体问题，强烈建议日志中保存
    print('error with request id: {}'.format(e.request_id))
    print('error with message: {}'.format(e.message))
    print('error with http code: {}'.format(e.status_code))
    print('error with ec: {}'.format(e.ec))
    print('error with request url: {}'.format(e.request_url))
except Exception as e:
    print('fail with unknown error: {}'.format(e))